diff options
| author | markm <markm@FreeBSD.org> | 1995-10-28 16:58:05 +0000 |
|---|---|---|
| committer | markm <markm@FreeBSD.org> | 1995-10-28 16:58:05 +0000 |
| commit | 0336663acb5f8898f1b6458acfd4c70817c0718c (patch) | |
| tree | bed4ea6a610ec2669b364d66cd69fe10ce0feb9c /sys/i386/isa/vector.s | |
| parent | 63bc51f9191b9bad22a3d2a6a3ef84a091389395 (diff) | |
| download | FreeBSD-src-0336663acb5f8898f1b6458acfd4c70817c0718c.zip FreeBSD-src-0336663acb5f8898f1b6458acfd4c70817c0718c.tar.gz | |
Theodore Ts'po's random number gernerator for Linux, ported by me.
This code will only be included in your kernel if you have
'options DEVRANDOM', but that will fall away in a couple of days.
Obtained from: Theodore Ts'o, Linux
Diffstat (limited to 'sys/i386/isa/vector.s')
| -rw-r--r-- | sys/i386/isa/vector.s | 14 |
1 files changed, 13 insertions, 1 deletions
diff --git a/sys/i386/isa/vector.s b/sys/i386/isa/vector.s index bbed601..c630bee 100644 --- a/sys/i386/isa/vector.s +++ b/sys/i386/isa/vector.s @@ -1,6 +1,6 @@ /* * from: vector.s, 386BSD 0.1 unknown origin - * $Id: vector.s,v 1.11 1994/12/03 10:03:19 bde Exp $ + * $Id: vector.s,v 1.12 1995/04/15 21:32:18 bde Exp $ */ #include <i386/isa/icu.h> @@ -53,6 +53,16 @@ #define MAYBE_PUSHL_ES #endif +#ifdef DEVRANDOM +#define ADDENTROPY(irq_num) \ + /* Add this interrupt to the pool of entropy */ \ + pushl $irq_num ; \ + call _add_interrupt_randomness ; \ + addl $4,%esp +#else +#define ADDENTROPY(irq_num) +#endif + /* * Macros for interrupt interrupt entry, call to handler, and exit. * @@ -194,6 +204,8 @@ Xresume/**/irq_num: ; \ FASTER_NOP ; \ outb %al,$icu+1 ; \ sti ; /* XXX _doreti repeats the cli/sti */ \ + /* Add this interrupt to the pool of entropy */ \ + ADDENTROPY(irq_num) ; \ MEXITCOUNT ; \ /* We could usually avoid the following jmp by inlining some of */ \ /* _doreti, but it's probably better to use less cache. */ \ |
